*{
    margin:0px;
    padding:0px;
}
body{
    /*font: 12px/1.5 宋体, Arial, sans-serif;*/
    background:#F3F3F3;
}
img {
    max-width: 100%;
}
body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, form, fieldset, input, textarea, p, blockquote, th, td {
    margin: 0;
    padding: 0;
}
h1, h2, h3, h3, h4, h5, h6 {
    font-weight: normal;
}
a{
    text-decoration:none;
}
ul {
    list-style: none;
}
img {
    max-width: 100%;
}
.c{
    clear:both;
}
.none{
    display:none;
}
.n, em {
    font-weight: normal;
    font-style: normal;
}
.fix:after, .fix:before {
    display: block;
    content: "clear";
    height: 0;
    clear: both;
    overflow: hidden;
    visibility: hidden;
}



.wp{
    width:100%;
    max-width:66%;
    margin:0 auto;
}
#hd{
    height:80px;
    width:100%;
    background:#F3F3F3;
    position:fixed;
    left:0px;
    top:0px;
    z-index:100;
    min-width: 1160px;
    transition: all .3s;
}
#hd .wp{
    position:relative;
}
#hd .logo {
    float: left;
    margin-right:5px;
}
#hd .logo a {
    display: block;
    height: 100%;
    line-height: 90px;
}
#hd .logo a img{
    height:42px;
    position:relative;
    display: inline-block;
    vertical-align: middle;
    top:15px;
}
#nav{
    position: relative;
    top: 18px;
}
#nav ul li {
    float: left;
    line-height: 30px;
    margin: 0 2.4%;
}
#nav ul li a {
    display: inline-block;
    width: 100%;
    text-align: center;
    font-size: 14px;
    color:#000;
    font-family:"微软雅黑";
    /*border-bottom: 3px solid #4285F5;*/
}
#nav ul li a:hover{
    color:#134b77;
    border-bottom: 3px solid #134b77;
}
.experiment, .experiment span, .enter{
    position:absolute;
}
.experiment{
    right:0px;
    width:180px;
}
.enter{
    width:62px;
    height:27px;
    background:#ff754a;
    border-radius:7px;
    right: 0px;
    top: 20px;
}
.enter a{
    height: 100%;
    display:block;
    position:relative;
    text-align:center;
    font-size:6px;
    color:#FFF;
    line-height: 26px;
}
.experiment span a{
    font-size:9px;
    width:90px;
}
.sf p{
    font-size:9px;
    position:absolute;
    top:0px;
    left:60px;
    width:44px;
    white-space:nowrap;
}
.rs p{
    font-size:9px;
    position:absolute;
    top:0px;
    left:60px;
    width:30px;
    white-space:nowrap;
}
.experiment em{
    display: block;
    width: 6px;
    height: 6px;
    border-radius: 100%;
    background: #ff754a;
    position: relative;
    float: left;
    left: -5px;
    top: 4px;
}
.experiment .sf{
    left:-20px;
    top:55px;
    color:6f6f70;
}
.experiment .rs{
    left:100px;
    top:55px;
    color:6f6f70;
}

.introduce{
    position:relative;
    /*
    height:410px;
    */
    width:100%;
    margin-top:80px;
}
.introduce img{
    /*
    height:410px;
    */
    width:100%;
    z-index:-100;
}
.title{
    text-align:center;
    width:370px;
    margin-top:-385px;
    font-family:"微软雅黑";
}
.title h1{
    font-size:30px;
    color:#2576a9;
}

.introDiv{
    height:180px;
    width:66%;
    background-color:rgba(7,101,161,.9);
    position:absolute;
    bottom:0px;
}
.intro_cen{
    position:relative;
    width:700px;
    height:120px;
    margin:0 auto;
    margin-top:30px;
}
.intro_cen img{
    float:left;
    height:120px;
    width:120px;
}
.intro_txt{
    background:url(../images/2020-07-29_152418.png)no-repeat;
    float:left;
    margin-left:38px;
    width:415px;
    height:120px;
    font-family:"微软雅黑";
    overflow: hidden;
}
.intro_txt h2{
    position: relative;
    font-size: 16px;
    color:#FFF;
    left: 20px;
    top: -3px;
}
.intro_txt h3{
    position: relative;
    font-size: 13px;
    line-height: 23px;
    color:#FFF;
    margin-left: 20px;
    top: 10px;
}
.intro_cen span{
    position:absolute;
    height:10px;
    width:105px;
    height:28px;
    right:0px;
    bottom:0px;
    text-align:center;
    border: 1px solid #FFF;
}
.intro_cen span a{
    height: 100%;
    display: block;
    position: relative;
    font-size:13px;
    color:#FFF;
    font-family:"微软雅黑";
    line-height: 27px;
}
@media screen and (max-width: 1400px){
    #nav ul li {
        margin: 0 2%;
    }
}
@media screen and (max-width: 1290px){
    #nav ul li {
        margin: 0 10px;
    }
}

.tit{
    position:relative;
    margin:15px 0px;
}
.tit em{
    display:block;
    position:relative;
    float:left;
    height:17px;
    width:15px;
    top:3px;
    border-left: 2px solid #4976E8;
}
.tit p{
    font-size:17px;
}
.cen{
    width:98%;
    margin:0 auto;
    color:#333333;
    font-size:14px;
    line-height: 2.4;
}











